Combined type-bar and hanger.



T. M. BYRNES. oomnmm) TYPE BAR AND HANGER.

APPLICATION FILED MAR. 21, 1908. v

Patented 0ct.'5,1909.

I INVENTOR. 1 jams'jji Byi'w ATTORNFY typ e-bar.

provide that the mains for the locking of the elements of the hallhearing" which has inn'rnn ra'ranr carton.

THOMAS M. BYRNES, OF CHICOPEE, MASSACHUSETTS.

GOI'JIBINED TYPE-BAR AND HANGER.

Application filed March 21,

To all whom it may concern: l

Be it. known that I, Tnonas M llvnxtts, l a citizen of the United States111' America, and resident of Chicopee, in the county of llainpden andState of MassticllusctlH, have invented certain new and useful improve--ments in Combined liytwdl-ars and liang'ers, of which the tollowing is afull, clear, "d exact description A,

This invention relates to improvements in a combined type-bur and hangerwherein ball bearings are comprised at the pivotal joint or journalwhich the. type-bar has for its swinging iumcincnts relatively t thehanger; and the objects are lo'provide in a device of thischaracter\vtuucin the hall rawand circular row of balls are in the type-bar. notonly a lessened number of lml'ls-('tIlIiPllSOli in the hall bearingdevices, but such an arrangement thereof that the transverse dimensiono1? bolts, the hanger, and the type-bar related. thereto, is ex treinolysmall, with no parts or elements which extend l yond o1 transverselyfrom but one face oi -idc o'l the hangl'crt and to the ball bearingadjustment, when such adustnicnt is satisfactorily cttcc' :d, shall heconstituted by an integral portion at one of its location between theinner El -3P9 ot' the hanger and the ad acent side portion of the Theinvention consists in the parts having specilic individualconstructionsand C0111: hincd and arranged in a certain particularmanner as hereinafter described in conjunc tion with the accompanyingdrawings and as set forth in the claim.

in the drawings,-Fignre 1 is a side view of the typebar and hanger. Fig.a' sectional view on line Fig. l.

The drawings here provided are 'cry inuch enlarged above the actual sizeof the device; and this connection it. will he stated that an importantohjec theing to obtain a construction of hanger and ball hearing typeharhaving the smallest possible transverse dimension or thickness. owing tothe limited space on the typewriter frame or segment on which thehangers are mounted, I am under the exercise of this invention enabledto construct the device so that the thickness through the same,inclusive of all of tho equipments at the placof journal Specificationof Letters Patent.

Patented Oct. 5, 1909. 1908. Serial No. 4223-77.

support for thc'type-bar is but 128/1000 01 an inch,

in the ;lrawings,-A represents the hanger constituted by a thin,metallic plate having a omparatively small circular scrowthreadedaperture therethrough.

B represents the type-bar arranged along side of, and slightly separatedfrom the face of the hange'; and. the type-bar has acirwall of whichconstructed with a V-shaped groove, as shown in Fig. 2, to make a ballrace; and C represents the single row of very minute halls therein.

I) represents a screw of which the shank is of uniform diameter andhaving at its end a comparatively thin polygonal head 13 and atrusto-conical portion 14 next thercwithin, the head being disposedadjacent the side of the type-bar, which is the farther from the hanger,the cone having an extension part way through the thickness of thetype-bar in the marginally grooved aperture thereof and the extremity ofthe screw shank is adj'ustahly screwengaged in the aforementioned smallscrew threaded hole 10 in the hanger. The only other element comprisedin the device is constituted by that representcd at E, the sameconsisting of a nut comprising a polygonal enlargement l4 and afrusto-conicalshaped portion integral therewith, screw engaged on theshank 11 of the screw D, the conical portion being entered part waythrough the thickness of the type-bar, in the apertu: 12 therein andopposed to the conical portionllv in proper relation to the inclosedballs, while the polygonal portion orenlargement 14 of the nut 15located in the narrow spice between the type-bar and hanger and isadaptedto have an adjnstmenti-locking bind against that side of thehanger which is toward the typebar,-or in other words, againstthcinnerside or face of the hanger.

lirtlieassembling and adjustment of the parts the combined nut and coneE is brought to its place of screw engagement on the shank of the screwin screw including clement D and approximately in proper adjustmentrelatively to the ball. '1. he ex tremity of the screw isthen engaged inthe threaded opening 10 in the hanger but: does not protrude beyond theouter face of the latter. The assembler or adjuster by the dcxtrousemployment of thin wrenches used once slightly in both hands turns boththe'sc'rew c0mprising element D, to bring the portions 14 and 13 and thetype-bar suitably close to the in ner face of the ban er, and to set theconical portion 15 of the e ement E to a somewhat harderbind against theballs than is appropriate for the desired freedom of action in the ballbearing 1 type-bar support. The parts now having, as the skill andexperience of the adjuster will determine, the proper. juxtaposition,the nut E- is given a slight turning movement in a direction to atrelieve the, cone pressure against the balls (so that the ball bearingswill have the proper closeness of working relations and yet thedesirable freedom for easy movements anda good feeling) and by the hardcontact of the outer face. of the nut against the inner face of the baner effect the reliable and permanent locking of the ball bearing partsin their nice adpistmeats.

I am aware that it has been proposed to construct a typebar with anintegrally' formed trunnion-like member comprislng a"- cone and screwshank extension, to be introduced through and beyond a ball race opening in a hanger, a companion cone being adjustable on a screw and lockedby a separately formed nut also engaging on the screwand constituting aprojection beyond, and outside of the hanger; and also that it has beenproposed .to construct a type-bar with an aperture therethrough forballs toether witha cone and screw,'.the shank of t e latter protrudinthrough and beyond the outside of vthe anger, the companion coneengaging on the screw within the aperture in the type bar andinterlocked with, and non-rotative relatively to, the hanger, and a nutadditional to and formed separately from the companion cone and havingits location-and engagement with the screw the manner of effecting theoutside of the hanger; but from neither of these constructions may bederived all bf the advantages of the present device, nor is xiocking adjustment, which has, been he'rei above particularly explained,permissible in the constructions just above referred to as having beenheretofore proposed. a

.I claim 1- Thecombination with a hanger comprising a vthin plate havinga circular screw threaded aperture therethrough, of a type bar alongsideof, and slightly separated,

-fro1n,,'the face of the hanger, having a C11- cular aperturetherethrough, the edge wall of which is constructed with a groove tomake a ball-race, and balls therein, a screw having at one end apolygonal head, and a frusto-conical portion next therewithin, the headbeing disposed adjacent the side of the type bar which is the fartherfrom the hanger, the cone being-entered part way through the thicknessof the type bar .in the aperture thereof, and the'extremity of the screwbeing adjustably screw-engaged in the hanger, a nut, comprising apolygonal en -largement and a frusto-conical shaped portion integraltherewith, screw-engaged on the shank of the screw, the conical portionbeing entered part way through the'thickness of the type-ba'rin theaperture therein, against the balls, while the polygonal portion of thenut is located in the narrow space between the ty e-bar and hanger andhas an adjustment-10c ring bind a ainst the side of the hanger which istowar the type bar.

Signed by me at Springfield, Mass, in presence of two subscribingwitnesses.

THOMAS M. BYRNES.

, Witnesses.

Emnason G. Garnoan, WM. S. Benmwa.

